Refining element and method of making the same



z. 0LSSON-\ REEINING ELEMENT AND METHOD OF MAKING THE SAME.

APPLICATION FILED SEPT 15 I920.

Patented Nov. 211, 1922.

Patented New.. 21, 19220 "UNHTED STATES "11,435,972 Parent creme-e.

ZACHARIAS OLSSON,

]? NEW YURK, NZ'Y ASSIGNOR 01E SIX-TENTHS T0 AUGUST RUST- OPPENHEIM, 0E NEW YORK, Y.

BEFINING ELEMENT AND METHOD OF MAKING: THE SAME.

Application filed September 15, 1920. Serial No. 410,860.

. To all whom it may concern:

Sit

when used with the bauxite Be it known that I, Dr. ZAoHAmAe OLssoN, a subject of the King of Sweden, residing in the city, county and State of New York, have invented certain new and useful Improvements in Refining Elements and Methods of Making the Same, of which the following is a specification.

My invention relates to the art of refining oils, and has for its object the refining of oils in a simple and economical manner.

By my process -it is possible not only to bleach the oil but also to remove the moisture and all volatile matter. While my invention is adapted for refining all kinds of oils, it has been found particularly advantageous in the refining of vegetable oils, such as cotton-seed oil, peanut oil, and the like. Another of the advantages of myprocess is the fact that very little special apparatus is necessary, and such apparatus as is used is comparatively inexpensive and easy to operate. Another advantage of my process is that it can be carried on continuously. The ap aratus illustrated in the drawing consists 0 an oil storage tank 1 into. which is inserted the pipe 2 to the end of which is secured the bulb'S. The pipe 2 empties into the vacuum chamber 4. The vacuum is maintained by means of a vacuum pump (not shown) attached to the pipe 5 through the pipe 6. i

in the operation of my process I use a porous bulb of economical construction and of peculiar composition, T have found that bauxite canrbe used to bleach oils in place of fullers earth, as is ordinarily used. it have also discovered that bauxite can be combined with a binder so that it can be made into a refining element. By using my bleaching agent in the form of a porous element 1 am able to bleach and incidentally filter in one operation. By using my bleaching agent in the form of a porous mass 1 find that not only can li save practically all of the oil remaining in the bleaching material after it has become exhausted, butthat ll am quickly regenerate my bleaching materia and put 't 1n condition for use again.

I have discovered that bentonite has extraordinarily binding properties and that v reduces the amount of binding-material necessary to a very small amount.

small furnace.

able to easily and -l ture and volatile matters are removed, the

The elements, after being made, should be kept dry, or before using dried in a This is done in order to remove any moisture which may be absorbed from the atmosphere. While "this moisture would be removed by means of the vacuum, it is more economical to dry them separately.

It is obvious that the refining element may be in a form other than spherical, The refining material may be in the form of a disc adapted to fit in vessel, for example, a closed cylinder, the

the endof a tubular wells of which could be composed of metal I and the ends closed by refining discs. 7

The operation of my processv is as follows:

I attach one of my. bulbs or refining elements 3 to the pipe 2 and lower it into the tank 1 which contains the oil to be refined. The vacuum pump is then started whereby a vacuum is created inside of the bulb, 3

drawing the oil through the pores to. the inside of the bulb. Since my bulbs have been made so as to form a fine, porous mass, the material passing through is incidentally filtered and all the impurities suspended in the oil are removed, although filteringis not.

primarily the object of my invention. The oil coming in contact with the bauxite in the mass is bleached, the coloring material being absorbed by the bauxite. The oil, having pamed through the walls of the bulb 3 to the interior, is subjected to the action of the vacuum whereby all of the moisvolatile matter passing with the air through ice the pipe 2, the top of the receptacle t, pipe 5, and pipe 6 to the outsideair or a receptacle where it may do so. The refined oil, which F has been bleached, and with all the volatile matter be saved if desired to cotton-seed oil, if the oil is heated to between and 60 C.

If it is desired, the oil can be deodorized in the same operation. With some oils the odor will be removed by merely passing the oil through my refining medium. In other instances it may be necessary to let superheated steam in through the bottom of the vessel 4 so as to pass through the refined oil and ofl" with the exhausted air through the pipes 5 and 6. In instances where it is not desired to remove the moisture and volatile matter in the same operation, pressure can be used to force the oilsthrough. the porous mass instead of employing a vacuum.

The apparatus which I have shown is merely diagrammatic. In actual practice it would of course be desirable to have an air trap in the receptacle el whereby the refined oil could be removed from time to time without stopping the apparatus. I have found that my combined ielining element may be regenerated so that it can be used over and over again. In practice I have found that it is practical to use one of the bulbs atilcast five or six times.

My method of regenerating the bulbs is as follows: b

After the bulb has absorbed all of the coloring matter that it will economically,

it is removed from the oil, The bulb 3 is disconnected from the pipe 2, connected to another pipe connected 'to a vacuum pump and placed in a vessel containing gasolene, The gasolene is sucked through the bulb removing all of theoil remaining in the walls of the refining element. The oil may then be saved in any well known manner, such for instance, as distilling 0H the gasolene. The bulb, after having been cleansed from the oil, is then placed in a furnace and recalcined. In performing this operation, I prefer to heat the bulb up to 700 C. After remaining in the furnace for a sufficient length of time the coloring material is removed and the bulb is left in practically its original condition and is capable of being used over again.

It is obvious that various modifications may be made in the construction shown in the drawing and above particularly described within the principle and scope of my invention.

I claim:

1. A refining element comprising bauxite and bentonite.

Q. The method of making a refining element which consists in taking 75% of calcined bauxite, 20% of starch and 5% of bentonite andsubjecting the mass to a temi perature of at least 700 C.

In testimony whereof, I have aflixed my signature to this specification.

ZA CI-IARIAS OLSSO-N. 

